Intel IQ80321 manual Private Device Configuration Requirements

External RAID Section 4

The IQ80321 provides the capability for the user to develop RAID applications. There is a requirement to provide the ability of making the secondary PCI-X devices private and the ability to route the interrupt lines. The following requirements describe this capability.

4.1Private Device Configuration

The devices on the SPCI-X bus (Expansion Slot and Intel® 82544 Gigabit Ethernet Controller) are configured as private devices based on Table 86 requirements.

Table 86. Private Device Configuration Requirements

Description

The Secondary PCI-X Expansion slot is configured as private by either the Intel® 80321 I/O processor (Using a GPIO pin) or IBM PCI-X Bridge.

The Intel® 82544 Gigabit Ethernet Controller is configured as private by either the 80321 (Using a GPIO pin) or IBM PCI-X Bridge.

The device configuration scheme is based on Figure 17.

Figure 17.	IDSEL Routing for Private Device Configuration
				GPIO IDSEL_EN_PCIX1			SPCI-X Slot
	Intel® 80321
							PCIX
	I/O Processor			GPIO IDSEL_EN_GBE
							IDSEL
					DipSwitch
					S7E1
	IDSEL					U3D1
							U3D1
	S-Ad	S-Ad	S-Ad	Dip Switch	S-Ad			GBEIDSEL
				S-Ad
				S4D1
	Line	Line	Line	Line	Line		Intel®	82544
	28	22	20	18	24		Gigabit Ethernet
	Private Space			Public Space			Dip Switch
					IDSEL_REROUTE_EN		S8E1-7
			PCI-X
		Bridge
								A9459-02
Board Manual								69